Wheel



Oct. 2 ,1923. 1,469,288

a. WALTH ER WHEEL 7 Filed July 5. 1922 s Sheets-Sheet 1 Oct. 2, 1923.

G WALTHER WHEEL Filed July -5. 1922 3 Shanta-Sheet 2 Patented Get 2, 1923.

heir stares means a new when GEORGE WALT HER, OF DAYTON, OHTO, ASSIGNOR TO THE DAYTON STEEL FOUNDRY COMPANY,' OF DAYTON, OHIO, A CORPORATION OF OHIO.

WHEEL.

- Application filed July 5, 1922. Serial No. 572,831.

To all 711710772 it may concern.

Be it known that I; Gnonen vVAL'rHnn, a citizen of the United States, residing at Dayton, in the county 01"- Montgomery and State ofOhio, have invented certain new and useful Improvements in Wheels, of which the following is a specification, reference being had therein to the accompanying drawing.

My invention relates to an apparatus for and a method'of casting steel wheels, and in particular to cores therefor. i

It is the object of my invention to providea means for and method of producing rapidly on a quantit vcast steel wheels. M

It is an additional object to provide core plates, portions of which may be adjusted according to sizes, in order to accommodate different types and sizes of hubs. p I It is a further object of my i entionito produce core plates which will enable the ready assemblage of the core halves, and their transportation as, aunit to the place where the cores are baked.

t is an additional object to provide a single core plate which will have a flat surface and will therefore have the minimum of difficulties in being machined when the core plate warps due to the fact of heatthereon.

It is a further object to provide cores navin a plurality of supporting arborsand positioning chaplets together with means detachable from the assembling core "for-"supporting and transporting it.

Referring to the drawings: i r Fig.1-1 is a plan View of the-completed core showing the arbors, chapletsand apparatus for supportingstrings; v

Fig. 2 is a section of one hall of the core with arbor and chaplet in place;

' Fig. 3 is a similar View of the one halt of the core plate and core; 7 Fig. 4 is a section of the assembledv core and core plates; 1 j I Fig. 5 is a section of an alternate form or core plate; v

Fig. 6 is a section on the line 6-6 of Fig. 1; p

Fig. 7 is a section on the line 7-7-7 of Fig. 4; v a

Fig. 8 is a'section through the core and the core plate shown in Fig. 5.

y basis cores used for Fig.9 is a planview of the core plate shown 1n Fig. 5. I r I Fererr ng to the drawings in detall, l is the hub portion of the core, 2 is the spoke portion and 3 is the rim portion. In the periphery of the core in the rimrportion are the openings 4 through vwhich cords or strings are inserted for lifting and sup porting the complete core. 5 is an arbor havingthe diverging outer ends Gand the.

heads 7 adjacent the hub. The heads overlap and the outer ends6 overlap to, give strength and stability to the core. In the form of my invention shown in Figures 2, 3 and 4T employ autwo p ece core having a parting line. .Forthe. parts in making this core I select one half of the core plate orone section thereof which consists of a spoke portion, a hub portion l0, a rim port on 11, and certain connectlng'members on I the periphery of these plates. 0n the halt of the core plate shown in F ig." 2. there. is

mounted a hook 12 which engages with a ball 13 on the other half of the core plate provide detachable blocks 17 which are re;

tained. in position by a plurality of. lugs 18 which, are mounted" upon 10. By changing the sizes and configuration of the blocks,, 1

it is possible to vary the hub dimensions of the core without otherwise disturbing the core plates as the variations in the wheels are. principally found in the hub dimensions. I

In assembling the core plates the plates are filled with the green sand, and afterward its chaplets are located, and its arbors are placed in positiomwhere lpon the two halves are hooked together as described and are gradually brought together with the edges having the ball and hookv on the-ground.-

Upon the two halves being united the; core can then be baked and completely removed. The movement of the completed coremay be effected as desired by insertingstrings or cords throughthe aperture i, enabling the workmen to movethe core as a unit to a position in its flaskg In case it is not desired to use core boxes a core plate which is nearly flat may be employed, as seen in Figures 5,- 8 and 9. A plate having a marginal band 19 is provided. 'Within 19 is a continuous cutaway portion 20 for the rim and 21 tor the spokes and a hub port-ion QQ'WlllCli is open. The moulded sand core is of one piece with a suporting arbor and has no parting line. It rests upon this core plate until it is completely baked. This type of core plate may be readily machined as it does not have any diflicu'lt places for grinding in order to make it true if it has warped.

It will be understood that I do not desire to beconfined to this specific adaptation of my invention, but comprehend within it suitable modifications which may be necessary in adapting it to varying conditions. Having thusfully described my invention', whatI claim as new and desire to secure by Letters Patent, is v 1. In an apparatus for making cores, a core plate'for one half of the core, a sec- 0nd core plate for the other half of the core,

ond 'core'plate for the other portions,

separable means for pivot-ally connecting said core plates to one another-whereby the halves of the cores may be joined together and betranspo'rted as a unit.

2'. In an apparatus for making cores, a core plate for one half of the core, a sechalf of the core, means of pivotally Connecting said core plates to one another, and removable means adjacent the hub portion of the cores for determining the configuration thereof, and means ;to retain in position said means whereby the halves of the cores may be joined together and be transported as a unit.

3. In an apparatus for forming cores, a

- core plate which forms one half of the core,

said core plate having rim, spoke, and hub form a single core.

4;..In an'appa-ratus for forming cores, a coreplate which forms one half of'the core,

's aidcOrepla-te'having rim, spoke, and hub portions, a second similar half of core plate, means or uniting said pl'ates, detachable hub member's carried in the hub portions of the plates for supporting the hub ends of the corcsfand determining configuration thereof whereby cores placed ineach core plate may be brought together to form a single core.

'5'.. In an apparatus for forming cores, a

' core plate which forms one half of the core,

said core plate having rim, spoke, and hub portions, a second similar half of a core plate, means of uniting said plates, detachablehub members carried in the hub portions of the plates for supporting the hub a second similar half of a core. plate, and separable means for pivotally ends of the cores and determining configurat'ion thereof whereby cores placed in each coreplate may be brought together to form a single core, and openings in said plates for insertion of Chaplets therein.

6. In an apparatus for forming cores, a

core plate consisting of an angular body having a continuous cutaway portion having a core rim and a centrally located cutaway portion fora core hub.

7. In an apparatus for forming cores, a core plate consisting ofan annular having a continuous cutaway portion for forming a core rim and a centrally located body' tion for a corehub, the areabetween said rim portion and hub portion of the plate being angular'ly disposed to form tapering spoke" core portions and tapering plate core poi-- tions intermediate the spoke core portions;

9. In a core,"a core consisting of a rim, spoke and hub portions, supporting arbors therefor conslstlng of an arbor to each spoke having aisemicircul-ar transverse member-ad jacent the hub and bifurcated portion adjacent the rim, each of said arbors overlap at the head and the, rim;

10. In a core, a coreconsisti-ng. a rim, spoke and hub port ons supporting arbors therefor consisting of an arbor to each spoke havinga semicircular transverse member adjacent thehub and bifurcated por tion adjacent the rim, eachpf said arbors overlapping at the head and. the rim, and

a-pertures on the margins of the [core adja- 7 cent the rim for the insertion of supporting a I cores; 11. In a "process for makingfc'ores, placing green sand in a core plate, adjusting toward one another so that, when united the plates will be in a'vertical position substant ally and can he placed in an oven to,

bake the core, and placingchaplets in position through openingsin said :platesprior to baking.

'an arbor therein, placing green sandin an I another and progresively moving' thegplates 12. In a process of maklngscores placing green sand on a core plate afterjhaving placed in position hub positioning detachable means on said core plate, placing arbors in said sand so that the inner and outer ends thereof will overlapyselecting and filling with green sand a second core 7 plate after having placed a detachable hub member in position therein, and uniting said plates by joining one edge first and joining the rim of said plates so that the sand surfaces will be adjacent to one another.

13. In a process of making cores, placing green sand on a core plate after having placed in position hub positioning detachable means on said core plate, placing arbors in said sand so that the inner and outer ends thereof will overlap, selecting and filling with green sand a second core plate after having placed a detachable hub placing said assembled cores and plates in" an oven and baking, removing from the oven and removing the plates and inserting supporting members in apertures in the periphcry of said cores. 7 I

lnitestimony whereof, I afiix my signature. V I

GEORGE WALTHER 

